Abstract: A system for storing and thereafter cyclicly reproducing transient information including nm-element shift registers, either digital or analog, connected in cascade and operable in either (a) a data entry mode for storing transient data therein or (b) a recirculating mode for cyclicly reproducing at the output thereof the information stored therein. A clock of selectively variable frequency is provided for sampling transient information and/or shifting data through the shift register cascade depending upon whether the shift register cascade is in its data storage or its recirculation mode. An addressing circuit responsive to the clock signals for keeping track of the changing address of the stored information currently output from the shift register cascade is provided, and includes a single nm-bit counter in the form of a "divide-by-n" circuit and an "m-counter" circuit connected in series.